在Swift中运行Firebase时出错

Question

I am playing around with Firebase and I am trying to print the value of an item in Swift. This is the only code in the whole application, so nothing really complicated is going on.

var myRootRef = Firebase(url:"https://jotty.firebaseio.com/")

override func viewDidLoad() {
    super.viewDidLoad()

    myRootRef.observeEventType(.Value, withBlock: {

        snapshot in
        println(snapshot.value)

    })

}

When I run this I get an error:

2015-07-15 12:15:03.492 Jotty[32431:733653] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[FRepo youForgotToSetMinusObjCInTheOtherLinkerFlagsInYourXCodeProject]: unrecognized selector sent to instance 0x7b28b7a0'

Would anyone know how to fix this? I have been trying to fix this all day but I have no idea what is wrong with the application.

Answer 1

In "Build Settings" under "Other Linker Flags" use the "-ObjC" flag.

I recommend using CocoaPods instead of a manual setup .

See the Firebase docs for a manual setup .